/*
 *
 * Copyright 2021-2023 Software Radio Systems Limited
 *
 * This file is part of srsRAN.
 *
 * srsRAN is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * srsRAN is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * A copy of the GNU Affero General Public License can be found in
 * the LICENSE file in the top-level directory of this distribution
 * and at http://www.gnu.org/licenses/.
 *
 */

#pragma once

#include "srsran/adt/span.h"
#include <fstream>
#include <vector>

namespace srsran {

template <typename T>
class file_sink
{
private:
  std::ofstream binary_file;

public:
  /// Default constructor. It does not open file.
  file_sink() = default;

  /// Constructs a file sink using a file name.
  file_sink(std::string file_name) : binary_file(file_name, std::ios::out | std::ios::binary)
  {
    report_fatal_error_if_not(binary_file.is_open(), "Failed to open file.");
  }

  /// Checks if the file is open.
  bool is_open() const { return binary_file.is_open(); }

  /// Writes
  void write(span<const T> data)
  {
    report_fatal_error_if_not(binary_file.is_open(), "File not opened.");

    binary_file.write(reinterpret_cast<const char*>(data.data()), sizeof(T) * data.size());
  }
};

} // namespace srsran
